发明名称 |
Osmotically driven fluid dispenser |
摘要 |
An improved version of an osmotically driven mini-osmotic pump that is used to administer drug solutions. The basic components of the improved pump are: an inner flexible bag that holds the drug solution; a plug having a recessed inner end that seals the bag opening; a solution filling/discharge port through the plug; a cup-shaped, thermo-formed sleeve that fits partly about the bag and is made from a dispersion of an osmotically effective solute in a water soluble, theroplastic polymer vehicle; a shape-retaining, semipermeable membrane that encapulates the bag-sleeve subassembly; and a flow moderator that is received through the filling/discharge port in the plug.
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申请公布号 |
US4320758(A) |
申请公布日期 |
1982.03.23 |
申请号 |
US19800214182 |
申请日期 |
1980.12.08 |
申请人 |
ALZA CORPORATION |
发明人 |
ECKENHOFF, JAMES B.;GEERKE, JOHAN H.;LANDRAU, FELIX A. |
分类号 |
B01J4/04;(IPC1-7):A61M7/00 |
主分类号 |
B01J4/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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